Incorruptibles - These type of preserved bodies started being discovered back in the early centuries after Christ, though surprisingly, they do not fall into either the accidental or deliberate preservation categories. The causes for "incorruptibles" remaining free of decomposition have baffled scientists to this day. These bodies are discovered in many different environments, including environments that would typically cause an accidental or deliberately preserved corpse to decompose rapidly. They remain free of decay regardless of manner of burial, delay in burial, temperature, moisture, rough handling, frequent transference, having been covered in quicklime (a decaying agent), or proximity to other decaying corpses. They cannot be explained by science or reason. Some common characteristics of an incorrupt body:

Incorruptibles are typically found lifelike, moist, flexible, and contain a sweet scent that many say smells like roses or other flowers, for years after death. Incorruptibles are almost never embalmed or treated in any way due to the religious order's beliefs that the person came from. Incorruptibles remain free of decay, some for centuries, despite circumstances which normally cause decay such as being exposed to air, moisture, other decaying bodies, or other variables such as quicklime, which is typically applied to a corpse to accelerate decomposition. Incorruptibles many times contain clear, flowing oils, perspiration, and flowing blood for years after death, where accidental or deliberately preserved bodies have never been recorded to have such characteristics. Other partial incorruptibles have been found throughout the centuries where certain parts of the body decay normally, while other parts such as the heart or tongue remain perfectly free of decomposition.

What is most astounding of all is the fact that for each incorrupt body discovered, after research has been done to determine who the person was, it has always been determined that the person was an extremely devout Catholic. This inevitably leads to the question, How can the process of decay, which has no intelligence, choose which bodies to devour and not to devour, and why do they happen to be devout Catholics? This phenomena is simply miraculous.

In addition, many unexplainable miracles have occurred throughout history when people have come in contact with these incorrupt remains, and despite regular medical examinations, scientists have not determined why. These incorrupt bodies are on display all over the world to this day (mainly in Europe), and nearly all bodies who have been identified and whose background has been researched thoroughly, have been canonized by the Catholic Church as Saints due to their publicly devout Catholic life.